【摘要】 通过实验,研究了不同浆液体积分数的三相泡沫中氮气的释放速率;以此为基础分析了含氮气三相泡沫对封闭火区气体的惰化特性;应用三相泡沫固氮及惰化特性对宁夏煤业集团白芨沟矿的火区进行了成功惰化;防止了瓦斯爆炸的发生,保证了矿山救护队员施工的安全.实验及现场应用结果表明:三相泡沫能有效地将氮气封存于浆液之中,增强火区惰化的持久性,且适于惰化具有漏风源的封闭火区.更多还原

【Abstract】 The experiment was conducted to study the release rates of nitrogen from three-phase foam with different slurry concentrations.Based upon the experimental results,theoretical analysis was made to examine the characteristics of three-phase foam inerting the gases in the underground fire zone.Furthermore,the three-phase foam was successfully used for inerting the gases in the fire zone in Baijigou Coal Mine of Ningxia Coal Industry Group.It prevented the possibility of gas explosion and protected the safety of the mine rescue team members.The results obtained from the experiment and the practical applications indicate that the three-phase foam has a good inerting effect.It can remain the nitrogen within the water slurry and enhance the long-standing inerting effect.It can be applicable for inerting of fire zone with air leakage.更多还原